twr_tca9534a.h

#ifndef _TWR_TCA9534A_H
#define _TWR_TCA9534A_H
 
#include <twr_i2c.h>
#include <twr_tick.h>
 
#define TWR_TCA9534A_PIN_STATE_LOW   0
#define TWR_TCA9534A_PIN_STATE_HIGH  1
 
 
 
typedef enum
{
    TWR_TCA9534A_PIN_P0 = 0,
    TWR_TCA9534A_PIN_P1 = 1,
    TWR_TCA9534A_PIN_P2 = 2,
    TWR_TCA9534A_PIN_P3 = 3,
    TWR_TCA9534A_PIN_P4 = 4,
    TWR_TCA9534A_PIN_P5 = 5,
    TWR_TCA9534A_PIN_P6 = 6,
    TWR_TCA9534A_PIN_P7 = 7
 
} twr_tca9534a_pin_t;
 
 
typedef enum
{
    TWR_TCA9534A_PIN_DIRECTION_OUTPUT = 0,
    TWR_TCA9534A_PIN_DIRECTION_INPUT = 1
 
} twr_tca9534a_pin_direction_t;
 
 
 
typedef struct
{
    twr_i2c_channel_t _i2c_channel;
    uint8_t _i2c_address;
    uint8_t _direction;
    uint8_t _output_port;
 
} twr_tca9534a_t;
 
 
bool twr_tca9534a_init(twr_tca9534a_t *self, twr_i2c_channel_t i2c_channel, uint8_t i2c_address);
 
 
bool twr_tca9534a_read_port(twr_tca9534a_t *self, uint8_t *state);
 
 
bool twr_tca9534a_write_port(twr_tca9534a_t *self, uint8_t state);
 
 
bool twr_tca9534a_read_pin(twr_tca9534a_t *self, twr_tca9534a_pin_t pin, int *state);
 
 
bool twr_tca9534a_write_pin(twr_tca9534a_t *self, twr_tca9534a_pin_t pin, int state);
 
 
bool twr_tca9534a_get_port_direction(twr_tca9534a_t *self, uint8_t *direction);
 
 
bool twr_tca9534a_set_port_direction(twr_tca9534a_t *self, uint8_t direction);
 
 
bool twr_tca9534a_get_pin_direction(twr_tca9534a_t *self, twr_tca9534a_pin_t pin, twr_tca9534a_pin_direction_t *direction);
 
 
bool twr_tca9534a_set_pin_direction(twr_tca9534a_t *self, twr_tca9534a_pin_t pin, twr_tca9534a_pin_direction_t direction);
 
 
#endif // _TWR_TCA9534A_H